WO1999046030A1 - Procede pour recuperer et/ou eliminer des composes organiques contenus dans des flux gazeux - Google Patents

Procede pour recuperer et/ou eliminer des composes organiques contenus dans des flux gazeux Download PDF

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Publication number
WO1999046030A1
WO1999046030A1 PCT/EP1999/000733 EP9900733W WO9946030A1 WO 1999046030 A1 WO1999046030 A1 WO 1999046030A1 EP 9900733 W EP9900733 W EP 9900733W WO 9946030 A1 WO9946030 A1 WO 9946030A1
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WIPO (PCT)
Prior art keywords
organic compounds
adsorbent
adsorber
microwaves
microwave
Prior art date
Application number
PCT/EP1999/000733
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German (de)
English (en)
Inventor
Henner Schmidt-Traub
Dieter Bathen
Thomas Schulz
Michael Hoffmeister
Original Assignee
Engelhard Process Chemicals Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Engelhard Process Chemicals Gmbh filed Critical Engelhard Process Chemicals Gmbh
Priority to US09/623,637 priority Critical patent/US6511643B1/en
Priority to AT99908844T priority patent/ATE248636T1/de
Priority to AU28311/99A priority patent/AU2831199A/en
Priority to EP99908844A priority patent/EP1062021B1/fr
Priority to DE59906866T priority patent/DE59906866D1/de
Publication of WO1999046030A1 publication Critical patent/WO1999046030A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3441—Regeneration or reactivation by electric current, ultrasound or irradiation, e.g. electromagnetic radiation such as X-rays, UV, light, microwaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/864—Removing carbon monoxide or hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28078—Pore diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
    • B01J20/3204—Inorganic carriers, supports or substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3234—Inorganic material layers
    • B01J20/324—Inorganic material layers containing free carbon, e.g. activated carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
    • B01J20/3458—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/806—Microwaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/50—Aspects relating to the use of sorbent or filter aid materials
    • B01J2220/60—Use in several different columns
    • B01J2220/606—Use in several different columns parallel disposed columns

Definitions

  • the present invention relates to a method for recovering and / or removing organic compounds from gas streams.
  • Adsorption processes are suitable for the fine cleaning of gas flows.
  • An important application of this is the removal of volatile organic compounds (VOC), e.g. Solvents. Due to the changing priorities with regard to the environmentally friendly design of processes, it is necessary to design these adsorption processes in such a way that the highest possible proportion of volatile organic compounds is adsorbed and these can then be recovered again by desorption.
  • VOC volatile organic compounds
  • the sorption processes currently used in industry generally consist of three stages: In the first stage, the exhaust air is passed through an adsorber, in which the valuable substances contained are retained. Subsequently, the adsorber is subjected to superheated steam, for example, so that a water vapor / recyclable material mixture can be fed to the second stage, a condenser. The mixture condensed out there is then separated in a third stage, for example an extraction or a distillation, into the valuable substance and the desorbent. Before the adsorber can be used again, it must be dried by flushing with a hot inert gas and then cooled. In the case of polar adsorptives, the third process step is particularly cost-intensive.
  • a temperature change desorption is often used, in which the required energy is supplied not via water vapor, but via a hot purging gas, eg nitrogen.
  • a hot purging gas eg nitrogen.
  • Newer methods of entering energy in an adsorbent focus on the use of microwaves.
  • the supplied electromagnetic energy is used, among other things, to chemical re ⁇ trigger actions and to entertain or to expel an undesirable component of a solid.
  • the entry of energy by microwaves is used industrially.
  • US-A-5282886 describes a method in which the bed is irradiated with microwaves during the adsorption in order to increase the selectivity of the adsorption process.
  • DE-A-2857134 describes a process for the regeneration of loaded adsorbents by dielectric heating. Examples of use are the extraction of oxygen from air, the removal of SO 2 and H 2 S from natural gas and the removal of SO 2 from flue gases.
  • the microwave ovens can be provided movably on the outside of the adsorber bed, e.g. in CA-A-2082690. But you can also e.g. be installed above the adsorber bed. The microwaves are then passed into a tube in the middle of the adsorber bed and reflected there, e.g. described in DE-B-195 26628.
  • adsorbents e.g. activated charcoal, zinc oxide, activated aluminum oxide and molecular sieves.
  • Microwaves are suitable for the input of energy for the desorption of adsorbed substances, since microwaves transfer heat directly to the materials interacting with microwaves. Heating with microwaves creates a high-frequency oscillating movement of the interacting substances through the combined action of the electrical and magnetic fields, which are associated with adsorbed electromagnetic energy. The rapid and direct rise in temperature is caused by this "molecular friction". Only molecules with a polar structure are directly excited by microwaves. A distinction is therefore made between microwave-active molecules, ie molecules that interact with microwaves, and microwave-transparent molecules, ie molecules that do not interact with microwaves.
  • activated carbon is disadvantageous in several ways.
  • Activated carbon is such an effective adsorbent that it is generally not possible to separate the adsorbed substances from the adsorber without destroying them by irradiation with microwave energy.
  • activated carbon there is an increased risk of adsorber fire due to the creation of so-called "hot spots”.
  • adsorbents have the disadvantage that they are either microwave transparent, i.e. it is not possible to separate the adsorbed substances from the adsorber again using microwaves, or they only adsorb certain types of organic substances.
  • Deauminated zeolite microwave-transparent.
  • this adsorbent is only suitable for non-polar organic substances. Since non-polar substances are also microwave-transparent, it is practically impossible to remove them from the adsorber by exposure to microwaves.
  • Alumina on the other hand, although absorbing microwaves, is only suitable for polar substances.
  • the adsorbent is a finely dispersed mixture of hydrophilic and hydrophobic adsorbents.
  • the desorbed organic compounds can either be condensed and thus recovered or sent to catalytic or thermal afterburning.
  • a purge gas can be used to desorb the organic compound.
  • a purge gas with ambient temperature is preferably used.
  • the adsorbent used in the process according to the invention is a finely dispersed mixture of at least one hydrophilic and at least one hydrophobic adsorbent.
  • the adsorbent is preferably a molded body made of inclusions distributed microdispersed in a matrix. These inclusions should have a size of 40 to 15,000 nm, preferably 50 to 10,000 nm and particularly preferably 100 to 5000 nm.
  • This mixture ensures that the process according to the invention can adsorb both polar and non-polar compounds.
  • this special adsorbent prevents the creation of so-called "hot spots" and thus prevents the occurrence of fires.
  • the adsorbent used according to the invention is not destroyed by the irradiated microwaves.
  • the adsorbed substances can also be recovered non-destructively.
  • the mixing ratio of the components of the adsorbent is not limited.
  • the preparation of these adsorbents is illustrated by the following examples. If an aluminate and a silicate solution, one of which contains activated carbon, are combined and immediately added to a precipitating oil as a mixture, pearl-shaped bodies of amorphous aluminosilicate with inclusions of activated carbon are formed. It is also possible to combine an aluminum sulfate solution and a silicate solution, one of which contains activated carbon, and then to add it to a coagulation oil. This creates a matrix of aluminosilicate with inclusions made of activated carbon. An adso ⁇ tio ⁇ smittel based on amo ⁇ hem SiO 2 can be obtained by mixing activated carbon in a silicate solution and subsequent precipitation by adding an acid solution.
  • an adsorbent consisting of a hydrophilic matrix with a hydrophobic material embedded therein is used.
  • a matrix of aluminosilicate or silica gel with inclusions made of activated carbon or dealuminated zeolite can be used.
  • the finely dispersed distribution of the hydrophobic material is important.
  • These adsorbents comprise, for example, particulate activated carbon in an oxidic carrier based on SiO 2 , Al 2 O 3 , aluminum phosphate or aluminosilicate.
  • a particularly preferred adsorbent is produced by the so-called sol-gel process. This process is described in EP-A-570847.
  • the adsorbents described in EP-A-570847 comprise 5 to 40% by weight of particulate activated carbon with a particle size of 50 to 10,000 nm in an oxidic carrier based on amorphous SiO 2 , Al 2 O 3 or alumosiiicalite, the carrier in a coagulation oil has been shaped.
  • activated carbon as used here also includes activated carbon soot, activated carbon coke and graphite.
  • activated carbon soot
  • activated carbon coke activated carbon coke
  • graphite other finely dispersed mixtures of hydrophilic and hydrophobic adsorbents can also be used.
  • the hydrophilic matrix can also consist of a molecular sieve.
  • a hydrophobic material such as e.g. B. a dealuminated zeolite.
  • a microwave-transparent matrix made of dealuminated zeolite can hold back non-polar compounds that are themselves microwave-transparent. If this matrix contains microdispersed inclusions made of a material that is microwave active and adsorbs polar substances (eg amorphous SiO 2 ), this mixture can be used to separate substances after the nonpolar and polar compounds have been retained together.
  • polar substances eg amorphous SiO 2
  • microwave-active, polar substances are first removed from the microwave-active inclusions. Only then does the heating of the matrix, based on the inclusions, lead to the deodorization of the microwave-transparent substances from the microwave-transparent matrix. Such separations, in which adsorption is first carried out together and then desorbed selectively, have so far not been possible.
  • Figure 1 shows a circuit of two parallel Adso ⁇ tionskolonnen with a purge gas circuit.
  • the other adsorber column (A2) is regenerated.
  • continuous treatment of the exhaust air laden with solvents can be ensured.
  • the exhaust air loaded with the solvent enters the Ad-so ⁇ er column (A1), in which the solvent is adsorbed by the adsorbent.
  • the cleaned exhaust air leaves the adsorber column (A1) via the head.
  • the adsorbent bed in the Adso ⁇ er column (A2) which is in the desorption cycle, is irradiated with microwaves with the help of microwave generators (M). This desorbs the bound solvent.
  • a small stream of a flushing gas is flushed through the head of the adsorber column (A2), so that the desorbed solvent is discharged.
  • This purging gas / solvent mixture is cooled in a condenser (2) until the solvent condenses out.
  • the liquid solvent is separated in the condensate separator (3) and can be reused.
  • the purge gas is heated to ambient temperature in the gas heater (4) and fed back to the adsorber column (A2) via a compressor (5), so that a purge gas circuit can be implemented.
  • the adsorber column (A2) is switched to the adsorption cycle and the adsorber column (A1) to the regeneration cycle. This case is indicated in Figure 1 by the dashed lines.
  • the particle size of the adsorber materials is not limited. Materials with an average particle size of 0.1 to 10 mm are preferably used. The average pore diameter and the pore size distribution are also not restricted. However, materials with a pore size of 0.4 to 50 nm are preferably used. Adsorber materials which are preferably used in the process according to the invention have a large proportion of micropores ( ⁇ 2 nm), particularly preferably a micropore proportion of greater than 60%.
  • the bulk density of the adsorbents in the adsorber beds is in the usual range.
  • the speed of the gas stream which is passed through the adsorber is also in the range of the speeds normally used. 8th
  • the adsorber material can also be used in the form of structured packings.
  • the adsorber material is fixed on the surface of a shaped body.
  • This molded body can be honeycomb-shaped, for example.
  • the loading of the gas streams with substances to be adsorbed can be very high or very low.
  • the method according to the invention is particularly suitable for the fine cleaning of gas streams. This removes solvents, aromas and odors or other trace substances.
  • the method according to the invention can be used for exhaust air purification of passenger cells from airplanes, trains or motor vehicles.
  • the frequency range of the microwave radiation to be used is not restricted and is usually in the range of 300 MHz and 300 GHz.
  • the range from 800 to 3000 MHz is preferred.
  • the Federal Communication Commission has released frequencies of 915, 2450, 5800 and 22125 MHz for the industrial, economic and medical sectors.
  • An adsorbent made from a shaped body made of microdispersed activated carbon inclusions in an SiO 2 matrix is loaded with organic compounds.
  • a desorption process is then carried out, once a hot gas desorption, once a microwave desorption.
  • the desorption curves obtained are shown in FIG. 2.
  • the microwave deodorization was carried out at a power of 125 W, the hot gas deodorization at 200 ° C. From Figure 2 it is clear that the desorption by microwave radiation takes a much shorter time. In comparison, the hot gas desodoration takes a long time. This long desorption time leads to higher costs in comparison to microwave desorption, at the same time the resulting large amount of purge gas with only a small load causes difficulties in the condensation of the desorbed compound.

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treating Waste Gases (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

L'invention concerne un procédé permettant de récupérer et/ou d'éliminer des composés organiques contenus dans des flux gazeux. Ce procédé comprend les étapes suivantes: extraire les composés organiques hors du flux gazeux à l'aide d'un adsorbant et désorber lesdits composés organiques de l'adsorbant à l'aide de micro-ondes, l'adsorbant étant un mélange finement dispersé d'adsorbants hydrophiles et hydrophobes.
PCT/EP1999/000733 1998-03-09 1999-02-04 Procede pour recuperer et/ou eliminer des composes organiques contenus dans des flux gazeux WO1999046030A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US09/623,637 US6511643B1 (en) 1998-03-09 1999-02-04 Method for recovering and/or removing organic compounds from gas streams
AT99908844T ATE248636T1 (de) 1998-03-09 1999-02-04 Verfahren zur rückgewinnung und/oder entfernung organischer verbindungen aus gasströmen
AU28311/99A AU2831199A (en) 1998-03-09 1999-02-04 Method for recovering and/or removing organic compounds from gas streams
EP99908844A EP1062021B1 (fr) 1998-03-09 1999-02-04 Procede pour recuperer et/ou eliminer des composes organiques contenus dans des flux gazeux
DE59906866T DE59906866D1 (de) 1998-03-09 1999-02-04 Verfahren zur rückgewinnung und/oder entfernung organischer verbindungen aus gasströmen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19810028.0 1998-03-09
DE19810028A DE19810028C2 (de) 1998-03-09 1998-03-09 Verfahren zur Rückgewinnung und/oder Entfernung organischer Verbindungen aus Gasströmen

Publications (1)

Publication Number Publication Date
WO1999046030A1 true WO1999046030A1 (fr) 1999-09-16

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PCT/EP1999/000733 WO1999046030A1 (fr) 1998-03-09 1999-02-04 Procede pour recuperer et/ou eliminer des composes organiques contenus dans des flux gazeux

Country Status (7)

Country Link
US (1) US6511643B1 (fr)
EP (1) EP1062021B1 (fr)
AT (1) ATE248636T1 (fr)
AU (1) AU2831199A (fr)
DE (2) DE19810028C2 (fr)
ES (1) ES2205782T3 (fr)
WO (1) WO1999046030A1 (fr)

Cited By (1)

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DE10151804A1 (de) * 2001-10-17 2003-05-08 Gmbu Ges Zur Foerderung Von Me Verfahren und Vorrichtung zur Adsorption und Desorption von organischen Verbindungen

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DE102006062651B4 (de) 2006-11-14 2009-12-31 Helmholtz-Zentrum Für Umweltforschung Gmbh - Ufz Verfahren und Vorrichtung zur thermo-chromatographischen Erwärmung von Feststoffbetten
FR2974519B1 (fr) * 2011-04-27 2014-03-14 IFP Energies Nouvelles Procede de purification d'un gaz humide contant des cov par adsorption faisant appel a une phase de regeneration par chauffage par micro-ondes
KR101549358B1 (ko) * 2014-12-31 2015-09-01 주식회사 에코프로 에너지 효율적인 공기정화시스템
CN114456411A (zh) * 2020-10-21 2022-05-10 中国石油化工股份有限公司 一种低voc含量聚丙烯树脂及其制备方法
CN114456555A (zh) * 2020-10-21 2022-05-10 中国石油化工股份有限公司 一种低voc含量聚己内酯树脂及其制备方法

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DE4414599A1 (de) * 1994-04-27 1995-11-02 Schmidt Traub Henner Prof Dr I Kontinuierliche Gegenstrom-Chromatographie-Verfahren mit Desorption und/oder Regeneration durch Mikrowellenenergie
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DE4414599A1 (de) * 1994-04-27 1995-11-02 Schmidt Traub Henner Prof Dr I Kontinuierliche Gegenstrom-Chromatographie-Verfahren mit Desorption und/oder Regeneration durch Mikrowellenenergie
DE4417081A1 (de) * 1994-05-17 1995-11-23 Chmiel Horst Verfahren und Vorrichtung zur Entfernung organischer Verbindungen aus Fluiden mittels Absorption und nachfolgender Desorption mittels Mikrowellenbeheizung
DE19541918A1 (de) * 1995-11-10 1997-05-15 Mut Mikrowellen Umwelt Technol Verfahren zur Desorption an Adsorptionsmittel gebundener Verbindungen und Desorptionsapplikator
DE19703068A1 (de) * 1997-01-29 1998-07-30 Dornier Gmbh Verfahren zur thermischen Regeneration eines dielektrischen Adsorbers
WO1999003565A1 (fr) * 1997-07-15 1999-01-28 Daimler-Chrysler Ag Procede et installation pour eliminer des substances organiques gazeuses contenues dans l'air

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10151804A1 (de) * 2001-10-17 2003-05-08 Gmbu Ges Zur Foerderung Von Me Verfahren und Vorrichtung zur Adsorption und Desorption von organischen Verbindungen
DE10151804C2 (de) * 2001-10-17 2003-09-18 Gmbu Ges Zur Foerderung Von Me Verfahren zur Adsorption und Desorption von organischen Verbindungen

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DE59906866D1 (de) 2003-10-09
ES2205782T3 (es) 2004-05-01
AU2831199A (en) 1999-09-27
DE19810028A1 (de) 1999-09-30
EP1062021B1 (fr) 2003-09-03
EP1062021A1 (fr) 2000-12-27
DE19810028C2 (de) 2002-09-26
US6511643B1 (en) 2003-01-28
ATE248636T1 (de) 2003-09-15

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